Perhaps you should try some spelling variations:
dang xay » dang van, van xay
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
va thanh » gia thanh, ban thanh, va tinh
dieu cua » dieu tra
te sach » toc sach
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
doi cua » dai cua, hoi cua
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach _ dang xay hoi. hieu ve cac nuoc va thanh ((dieu cua) or (doi cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ dang xay hoi. hieu ve cac nuoc va thanh ((dieu cua) OR (doi cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach _ dang xay hoi. hieu ve cac nuoc va thanh ((dieu cua) or (doi cua)) tre*.